Transcript of "Cell Structure And Function"

1.
Cell Structure and Function Chapter Seven www.nerdscience.com

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The Discovery of the Cell <ul><li>Robert Hooke – first to see and identify cork “cells.” </li></ul>7-1 www.nerdscience.com

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The Cell Theory <ul><li>Cell Theory: </li></ul><ul><li>All living things are composed of cells. </li></ul><ul><li>Cells are the basic units of structure and function in living things. </li></ul><ul><li>New cells are produced from existing cells. </li></ul>Schleiden Schwann Virchow 7-1 www.nerdscience.com

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Mitochondria <ul><li>Mitochondria – organelle that converts chemical energy stored in food into compounds that are more convenient for the cell to use. </li></ul><ul><ul><li>“ Powerhouse of the Cell!” </li></ul></ul>7-2 www.nerdscience.com

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Diffusion and Osmosis <ul><li>Diffusion – movement of particles from an area of high to low concentration. </li></ul><ul><li>Osmosis – the diffusion of water through a selectively permeable membrane. </li></ul><ul><ul><li>Water will move into/out of a cell to equalize concentrations. </li></ul></ul>7-3 www.nerdscience.com